You would need around 548,135.26¥ (6,701.94S$) in Singapore to maintain the same standard of life that you can have with 540,000.00¥
in Tokyo (assuming you rent in both cities). This calculation uses our Cost of Living Plus Rent Index to compare cost of living. This assumes net earnings (after income tax). You can change the amount in this calculation.

Indices Difference

Consumer Prices in Singapore are 19.02% lower than in Tokyo

Consumer Prices Including Rent in Singapore are 1.51% higher than in Tokyo